This is the master bug report for software-center not being able to install untrusted packages.
The precise error message can be seen in the screenshot attached and is as follows:
"Requires installation of untrusted packages
The action would require the installation of packages from not authenticated sources."
The error dialog only has an 'ok' button which aborts the installation and has no option to trust the source.
Binary package hint: software-center
This is the master bug report for software-center not being able to install untrusted packages.
The precise error message can be seen in the screenshot attached and is as follows:
"Requires installation of untrusted packages
The action would require the installation of packages from not authenticated sources."
The error dialog only has an 'ok' button which aborts the installation and has no option to trust the source.